OK, first let me start by saying thank you so much to all of you, because without you I would've never even been able to start anywhere on this pool. Secondly please bear with me, because I'm gonna ask some really dumb questions, does even know over the past four months, I feel like I have become a somewhat pool connoisseur, I still have stupid questions. With that being said, I have noticed that I am losing an extreme amount of water, when the filter is running on the pool in the filter position. I have checked all my lines, I have made sure that all my seals are tight, and I'm still losing water. Now I've narrowed it down to, most likely losing water in the backwash line, and I'm assuming it's probably because of the spider valve gasket. But before I take everything apart, I had just a basic question. When my pool pump is running in the filter position, will I see water running through the sightglass on the backwash line? I guess what I'm trying to figure out is should there be water through the sightglass on the backwash line if my pump is running in the filter position? I'm assuming if I'm not supposed to see that, then I am losing water there. Any help would be appreciated, and thanks in advance.